“Properly installed insulation can save a homeowner a bundle on energy bills, keep a house more comfortable, and make the pro who installed it a hero. Improperly installed, however, that same product will do nothing to improve the comfort or energy efficiency of a home-and can create complaints about the material, the installer, and the dealer who sold the insulation.”

The six main points of the article are:

Most homes don’t need more insulation

Insulation doesn’t last forever

Building codes demand thicker insulation today

Not every builder installs insulation correctly

It’s possible to over-insulate an attic.

Re-attaching or adding insulation could save a homeowner from replacing the HVAC.

Foil faced fiberglass, or the product the customer has provided a link to, can be used as instructed by the manufacturer, as well as any other insulating materials. The particular link that has been provided is a reflective heat barrier product, which is commonly used beneath radiant floor heating systems as a way to help force the radiant heat upward. Is also commonly used for radiant heat ceiling applications above the heat source to force the heat down. In either application, we are still required by building code to meet minimum R-values, which the reflective barrier itself will typically not achieve. In which case additional fiberglass, cellulose or foam insulation materials will likely fill the void.